Home / 13,444.76-20,153.64-5,122.64

Finding the Fourth Proportional to 13,444.76, 20,153.64 and 5,122.64

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Solution

The fourth proportional to 13,444.76, 20,153.64 and 5,122.64 is: 7,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.76 : 20,153.64 = 5,122.64 : x
  2. Step 2: Convert to fraction form
    13,444.76/20,153.64 = 5,122.64/x
  3. Step 3: Cross multiply
    13,444.76x = 20,153.64 × 5,122.64
  4. Step 4: Simplify right side
    13,444.76x = 103,239,842.41
  5. Step 5: Solve for x
    x = 103,239,842.41/13,444.76
  6. Step 6: Final answer
    x = 7,678.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.